Device for lubricating spindles in twisting frames



Sept. 27, 1960 P. DALIX DEVICE FOR LUBRICATING SPXNDLES IN TWISTINGFRAMES Filed Dec. 5, 1958 rfOE/WFY United States Patent DEVICE FORLUBRICATING SPINDLES IN TWISTING FRAMES Paul Dalix, Vaulx-en-Velin,France, assignor to Chimie tex Societe Anonyme, Geneva, Switzerland, acorporation of Switzerland Filed Dec. '5, 1958, Ser. No. 778,464 Claimspriority, application France Dec. 6, 1957 1 Claim. (Cl. 57-133) Thisinvention relates to twisting frames and has for an object to providenovel and improved means for lubricating the spindles.

In cap twisting frames of the type commonly in use, the caps are mountedon fixed vertical spindles on which sleeves slide with a reciprocatingvertical movement. The sleeves in turn carry rotating supports by meansof which the cop or take-up bobbin is centered and driven. Each sleeveis attached to a spindle plate which is actuated with appropriatereciprocating movement for the adjustment of the stroke. The slidingsleeve dips into the oil contained in a fixed cup concentric with andattached to the spindle each time it passes through its lower deadcenter position in its vertical reciprocating movement.

A disc member mounted at the lower end of the sliding sleeve carriesaway a small reserve of oil in each of its upward movements and'effects, through ports formed in the sliding sleeve, the necessarylubrication for the movement of the latter on the spindle.

This lubricating device as heretofore used has serious disadvantages. Itis difficult to prevent oil leakages from the cup and, quite apart fromthe loss of oil, the flow of oil blackened by dirty grease on the frameis unsightly. Moreover, moisture may penetrate into the cup and promotethe formation of dirty grease. Lubrication by this system requiresconstant attention and the oil must be renewed frequently.

It is accordingly a further object of the present invention to provide alubricating device which eliminates these disadvantages.

The device according to this invention is designed for lubrication withsemi-solid grease. The aforesaid disadvantages are obviated to a largeextent by confining the grease in a substantially closed chamber intowhich it is introduced through an appropriate valve.

The nature of the invention will be better understood from the followingdescription, taken in connection with the accompanying drawing in whicha specific embodiment of the invention has been set forth for purposesof illustration.

In the drawing the device is illustrated by a sectional elevation of thesliding sleeve which is provided with lubricating means according to theinvention.

Referring to the drawing more in detail, there is mounted on the spindle1 of the hell (not shown), a sliding sleeve 2 having a flange 3'carrying a cushioning "ice element 4 which rests on a spindle plate 3actuated with a vertical reciprocating movement for controlling thetravel. The sliding sleeve 2 supports above the flange 3 two fluid-tightbearings 5 and 6, of which the inner races are shrunk on the sleeve. Theouter races are mounted in a pulley-7 forming a part of the rotatingsupport. A boss 8 is carried by the pulley 7 and projects upwardlytherefrom. A sleeve 10 carried by the boss 8 is formed with a disc 9which is carried by the end of the pulley 7. The cop or bobbin for thewinding of the thread is centered on the unit comprising the disc 9 andthe sleeve 10 by a method which is well known in the art. The said copor bobbin has not been shown.

The sliding sleeve 2 carires at its lower end a concentric cup 11 openat its lower end, into which is screwed a plug 12, which is also open atits lower end. The cup 11 is fixed, for example by screwing, on thelower part of the sliding sleeve 2, but any other securing means may beemployed. Grease 13 is introduced into the chamber enclosed within thecup 11 by means of a valve-type lubricator 14. A small port 15 permitsthe quantity of grease in the chamber to be checked.

A packing 16, for example of felt, is mounted in the plug 12. The saidpacking is held in position by a pressure member 17 secured by athreaded cap 18 screwed onto the lower part of the plug 12.

Since the cup 11 is completely closed contamination of the grease fromthe outside is eliminated with a consequent reduction in the frequencywith which the grease or oil must be renewed. At the same time theforeign substances are prevented from contaminating either the lubricantor the bearing surface between the sleeve and the spindle.

Although a specific embodiment of the invention has been shown forpurposes of illustration it is to be understood that various changes andmodifications may be made therein as will be readily apparent to aperson skilled in the art.

What is claimed is:

In a cap spinning frame with fixed cap spindles, a sleeve mounted foraxial reciprocation on each of said spindles, a cap support rotatablymounted on said sleeve and means lubricating said sleeve with semi-solidgrease and comprising a cup disposed around and concentric with saidspindle, said cup having a closed top wall secured to the lower end ofsaid sleeve, having a bottom wall forming a closure, said bottom wallhaving packing means forming a seal with said spindle whereby onreciprocation of the said sleeve and cup the spindle is lubricated bysaid grease.

References Cited in the file of this patent UNITED STATES PATENTS387,245 Milson Aug. 7, 1888 2,245,564 Bergmann et a1. June 17, 19412,780,049 Findlow Feb. 5, 1957 2,835,104 Guthrie May 20, 1958 V FOREIGNPATENTS 230,232 Great Britain Mar. 12, 1925

